Machine for making divergent fasteners



A 1,639,895 AU8- 23" .1927' 4v. RAGONA MACHINE FORVMAKING DIVERGENT FASTENERS Filed June 4, 1921 .4 sheets-sheet 1 INVENTO? Aug; 23;. 1927.

v.- RAGONA MACHINE Fok uMqGmf/ER'GENT FASTENERS I Filed-June 4;," 1921. l4 sheets-sheet 2 INVENTOR B, 719W www@ i 23 1 Aug 192? v. RAGoNA MACHINE ma MAKING nIvEaGENT msTENEns Filedaune 4, 1921 A4 sheets-sheets MMIHHHHIU im I Krul'- I' liHmmllulliiiiIliiiliilliiill 1,639,895 n Aug. 23, .1.927. v. RAGONA uAcHINE FOR MAKING mvEaGENT FASTENERS Exiled June 4. 1921 4 sheets-sheet 4 il?. v gmbh *1 s '/yglgwbf I I J Arron/ufr Patented Aug. 23, 1927.

'ETE h! 'if 2.01 FICE VINCENT RAGONA, OF BROOKLYN, NEWT YORK, ASSLGNOR, BY MESNE- ASSIGNMENTS, TO CARY MANFACTRNG CQ., F BROQELYN, NEW YORK, A GORPORATON OF NEW YORK.

MACHINE FOR MAKEN@ DERGENT EASTENERS.

Application led .Tune 4,

rhis invention is a machine for producing divergent corrugated fasteners of the type disclosed in "United States patent No.

1,328,911 granted to Spencer C. Cary on t January 2'?, 1920.

rhe fastener to be produced by this ma# chine embodies a straight Web positioned intermediate two groups of corrugations, the latter being inclined reversely toeach other, 1G said corrugations being formed on one edge of the metal stock With saw teeth and the corresponding edge of the straight web being sharpen-ed to produce a cutting edgev in the vplane of the points of the san7 teeth.

Fasteners of this character are produced in strip form by the operation of a machine embodying my invention, said strip of fasteners being cut transversely at appropriate lines to produce the individual fasteners of the desired form.

In carrying out the invention l employ co-operating die rolls the Working faces of which are formed with complemental dies operating to impart the divergent corruga- .i tions to metal stock of appropriate gage (thickness) and Width. vrEhe rolls are driven continuously .for producing the desired formation upon the stock, subsequent to which the stock is fed With an intermittent si] motion to appropriate dies acting to swage the edge of the metal and to produce the saw tooth formation upon the corrugated portions thereof. lith 'the die rollsl acting continuously, and With the svvaging die and e the tooth forming dies operating'intermittently upon the edge port-ion of the stock, it becomes necessary to employ an intermittent feed meansV acting upon the stock to advance said stock during the, periods of non-action of said dies. To this end, l provide a co-,operating roll and pressure plate between which the formed stock is directed to pass, said feed roll being at rest during the period the sivaging cie' and the ytooth forming dies act upon the stock, but ony the upstroke of the crosshead which carries said dies, the feed roll. is rotated a certain'reguliar distance for advancing the stockV an distance equal to the length of oney fastener, the action of the' feed roll being obtained by the movement of a feed' dog carried by a slide and glo-operating with a ratchet on 1921. Serial No. 475,148.

the feed roll shaft, said slide being actuated by the upstroke of the crosshead for giving the required travel to the feed dog and the .i

feed roll.

Other. functions and advantages of the invention will appear from the following description taken in connection with the dravv-v ings, wherein- Figure 1 is an elevation looking at one end of Vthe machine for making divergent corrugated fasteners constructed in accordance with this invention.

Figure 2 isa side elevation of the machine C looking toward the right in Figure 1.

Figure 3 is a plan view partly in hori Zontal section taken on a plane above the table and the die rolls.

Figures d, 5 and 6 are vertical transverse sections taken in the planes indicated by the dotted lines 4 4, 5 5 and 6-6, respectively, of Figure 3.

Figure 7 is an elevation looking toward the rear of the table illustrating the means tently to dies which act'to sWage one edge L,

portion of the metal stock and to cut out on definite lines certain portions of the corrugations B C for the purpose of producing asavv tooth formation upon the corrugated portions of the metalvstock, the points of the saw tooth being in the same plane as the sharpened edge on the flat Web A, all as Will more fully appear by reference to the prior Cary patenty to which reference has been made- A suitable framework D carries a table d upon -vvhich is secured a bed E, said frame- Work including suitable columns d having bearings Z2 for a crank shaft D. The

ciosshead slidably fitted in guideways of the columns cl, and this cross-head is connected by a linli f with the cranlt of shaft D for the purpose of imparting reciprocating motion to the crosshead.

rflic framework carries at one side thereof a bracket g in a bearing arm g which is provided with vertically aligned bearings for supporting a vertical shaft G of a power driven die roll H, the upper portion of said shaft G being pro vided with a bevel gear g2 which is driven from a spur gear g3 on crank shaft D by a gear train, the gears of which are indicated at g4, see Figures l and 2, whereby the die roll il is driven continuously and at the required speed. 1

Co--o "ating w`th the driven die roll H is a companion die roll l, the shaft z' of which is mounted in suitable bearings of the braciet g, said die roll I turning idly with its companion die roll H. The power driven die roll H is provided with corrugations 7L 7L separated by an intern ittent plain surface 71,2, the corrugations h 71, in the surfaces of the die roll corresponding to the corrugations B C of the fastencrto be produced, whereas the plain surface 7b2 is intermediate the corrugations and said plain surface is offset with respect to the corrugated surfaces it 7i. rlhe die roll l, however, is provided with corrugations i 2, and with depressed plain su es '53. The of'isct surfaces h2 of die roll H conform to the depressed plain surfaces 3 of die roll l; but on the periphery of die roll H the corrugations t 7.22 are grooves sunkenrin said surfaces of roll H, whereas the corrugations 'i' 2 of die roll l protrude and match or register with said sunken corrugations 7L 7L of roll H. The plain surfaces 7b2 3 of rolls H l, respectively, have inclined edges correspending to the taper of web fr, whereas the corrugations 7L 7'/ and 7L i2 of said rolls H l are inclined in the required converging relation so as to properly produce the corrugations .E C in the metal stock and thereby give the required divergent form to the resulting corrugated fastener.

rllhe metal stock is fed by any suitable directing means to the pass between the cooperating die rolls .l-l l, the roll lll being driven continuously through the train of g2 (/3 g4. rllhe roll H is a male die whereas the roll I is a female die, the die surfaces of the two yrolls matching or registering` for the purpose of having said two rolls coact in imparting the required rotation to roll "i byy the positively driven roll, whereby the male die roll and the female die roll operate in unison so as to give to the metal stock the required formation so as to result in the product-ion on said metal stock of the diverging corrugations and the straight web intermediate said corrugations.

For presenting the stoel: to the dies :which swage one edge portion thereof and for producing a saw tooth formation thereon,the bed plate E is provided with a longitudinal channel J formed by a groove in the upper face of said bed plate. After passing the die rolls the metal stock is directed into channel J, and is first engaged by feed devices acting on each strolie of the crosshead to advance the stock with astep feed, there being a loop of the stoclr between the intermittently actuated feed devices and the continuously rotating` die rolls, see Figure 3. The feed devices are embodied in the form of a roll K and a plate L co-opcrating with said roll. rlhe feed roll is carried by a short vertical shaft 7c mounted in a suitable l'icaring of the bed plate, and on this roll shaft is a. ratchet 7c', indicated by dott-ed lines in Figure 3 and shown in fullV lines in Figure 7. The surfaces of the feed roll are provided with corrugations and with the plain faces similar to the surfaces 7L 7L h2 of die rol H.

The plate L which co-operates with the feed roll is positioned and held within the ,Q'uideway Z provided on the top surface of the bed plate E. IThe edge of the feed plate next to the roll is smooth for the metal .steelt to slide along said edge under the action of the roll; but the feed plate may be moved by an adjusting screw Z so that the edge of the plate next to the roll may be shifted as required to allow the desired freedom of movement of the stock in contact with said edge of the feel plate. The feed yroll and its ratchet are actuated by a dog M which is pivoted at m to an end portion of slide N. Said slide is confined within a guide n iiXedly secured to the rear of the bed plate E, the dog M being pressed by a spring m into the required engagement with the teeth of the ratchet 7c. The slide is reciprocated b v an operative connection with crosshead F afforded by a bell-crank O ful crumed at to a fixed upstanding lug o. One arm of the bell-crank is connected by a link 02 pivoted at o3 to the rear of cross-v head F, whereas the other arm of the bellcrank is provided with a slot 0L in which is fitted a stud o on the feed kslide N, whereby reciprocating motion of the crossheadlr"l is communicated through the bell-crank to the slide N which in turn imparts the movement to the feed dog M for intermittently turning the feed roll K.

The corrugations B C ofthe stock are swaged on one edge of said stock for the purpose of beveling said corrugated portions of the metal stock preliminary to the formation of the saw teeth, said swaging operation being performed by swaging die P carried by the crosshead l1", see Figure t. During the swaging opera-tion the metal stock JX is seated on the bottom of the feed channel J so as to occupy a vertical position directly beloW the swaging die, the lower face of whichy is provided With a recess p, the .valls'ovf which diverge downwardly and which Walls compress the corrugations onone edge of the metal stoclr for the purpose of bevelling the same Withoutcutting out any metal from the stoclr.

For retaining the` stool; in Jthe required vertical position during the sivaging operation, l employ a clamping element in fhe form of a plate Q., the Working face q of Which plate conforms to the contour of the metal stock, see Figure. 3. Said clamping plate is confined Within a guideway g rovided on the upper face of the bed plate F, but normally said clamping plate is pressed away from the feed channel J by a. spring g2 Which is housed Within a recess gf provided in the bed plate E. rllhe spring g2 acts on a stud g4 Which depends from the clamping plate, as shown in Figure l. As the crosshead F descends the plate Q is pressed toward and into contact with the metal stock positioned in the guideway J by the Contact of an arm g5 with a cam gs, said arm g5 depending` from the crosshead F, Whereas the cam Q6 stands upwardly from the clamping plate Q.

The corrugated stock having been sivaged for the purpose of producing bevels en the edge of sait stock at the corrugated portions threof, the nent operation by the machine upon the stoel; consist-s in cutting out the swagcd corrugated portions on definite lines to produc-e the saw teeth formation on sait corrugated portions B C of the stock, leavtlie straight Webs A unaffected by the cutting out operation. r.The first cutting die R, shown in Figure 5, acts upon the sivaged corrugated portions of the stock for the purpose of removing some of the sivaged inaterial on definite lines, Whereas the final cutting die S, shown in Figure 6, acts upon other portions of the sa'aged stoclr at the corrugated portions thereof for the purpose of completing the saW tooth formation. le cutting dies R S are carried by the crosshead F in the required spaced relation, as shown in Figure 2, and illust-rated more particularly in Figures 5 and 6 `When the 'die R descends with the cro lead, the metal stock is inclined in one direction, as shown in Figure 5, for which purpose one Wall of the channel d is inclined as at y", but when the stock is moved along so that it is below the other cutting out die S, said stock is inclined in the opposite direction, as shown in Figure G, for which purpose the other Wall of the feed channel J is inclined as at ,7'2 in Figures 3 and 6.

For clamping the stock against the inclined section 5,5 of the feed channel, as in Figure 5, l employ clamping plate R, the face of which conforms to the metal stock. This clamping plate is fitted in a guideway 1 of the be'd'plate audit is acted on by spiug r tending vtoV normally press the plate away from the guide-channel. rlie plate is positively moi-ed against the tension of the spring by an arm r2 acting-on an upstanding cam r3 of the clamping plate, said arm r2 coacting with they cani in forcing the plate d. a insti-the metal stock so. as to deflect said stock into an inclined position and to clamp the sainel immova-bly in place and in the required relation to the path of the cutting die E.

Similar means for clamping the stoel; in' the reversely inclined section '7'2 the feed channel are provided for co-operatiou with the cutting die S. The clamp plate S silidably ntte'd in guidewavs and is acted on by a spring s, positive motion being given to the clamping plate toward and into contact with the stocl: by the arm 52 of the crosshead F contacting with the cam s3 standing upwardly from the clamping plate S, see ure'.

The operation may bs decribed as follows: The metal stock is fed to the die rolls which act to impart the ccrrugations thereto as shown in Figure 8, said stock passing thence tothe feed channel J so as to have tac desired relation to feed roll l and the clampingplates l S. @n he descent. of the crosshcad the dies P R S act upon the metal stock for the purpose of compressing one part of the stock by the sivaging die F, for cutting out a part of the corrugated stock thereof by the die R, and for cutting out the remainder of the stock by the die S acting on the opposite face of said stoclr to complete the saw tooth formation. On the ascent of the crosshead F, the dies P R S arelifted from the stock, and thereupon the slide N is moved in one direction by the bell-crank O so that the feed dog` M turns the feed roll a distance of one tooth of ratchet 7c, the effect of which is to feed t-he stock Within the channel J for a distance equal to one complete corrugated divergent fastener. The stock emerges from the feed channel in strip form substantially as shown in Figure 8, and thereafter the stock is out on a line between the oppositely inclined corrugations B C, thus producing individual fasteners of the required formation.

Having thus fully described the invention, what l claim as new and desire to secure by Letters Patent is:

l. ln a machine for making divergent fasteners of the class described, plurality of die-rolls provided with mat-ching surfaces in intaglio and in relief for producing on instal stock divergent corrugations and Webs intermediate said corrugations, in combination with dies acting subsequently to the die rolls and upon one edge only of the metal stoclr for producing saw teeth on the corrugated portions of said stock, feed-rolls positioned intermediate said die-rolls and said tooth-forming dies, and means for intermittently actuating said feed-rolls.

2. ln a fastener making machine, co-operating die-rolls, means fer rotating the same, a reciprocating cross-head, a plurality of dies carried by said crosshead, feed means for the metal stock, and means operated by the movement ofsaid crosshead for intermittently actuating the stoel; feeding means.

3. ln amaehine for making divergent fasteners of the class described, a plurality of complemental die-rolls provided with matching-surfaces in relief and in intaglio for the formation of divergent corrugations in alternate relation to flat surfaces, combined With a channel Within which the formed stock is directed in a determined path, tooth-forming dies acting upon edge only of the corrugated portions of the metal stock, feed-rolls positioned intermediate said die-rolls and said tooth forming dies, and means for intermittently actuating said feed-rolls and said tooth-forming dies. y

et. ln a machine for making divergent fasteners of the class described, a plurality of complemental die rolls provided respectively with matching surfaces in relief and in intaglio for deforming metal stock to produce straight webs intermediate adjacent divergent corrugations, in combination With means for producing a sau7 tooth formation upon an edge portion of the corrugated portions only of said metal stock.

5. ln a machine for making divergent fasteners of the class described, a plurality of complemental die rolls provided respectively With matching surfaces in relief and in intaglio for deforming metal stock to produce straight Webs intermediate adjacent divergent corrugations, in combination With means for directing the metal stock in a definite path subsequent to the action of the die rolls thereon, dies positioned to produce a saw tooth formation upon the corrugated portions only of the metal stock, and means for imparting intermittent motion to the metal stock.

6. ln a fastener making machine, the combination of co-operating die-rolls, means for rotating the same, a feed channel Within which the stoelr passes subsequently to the action of the die-rolls thereon, a plurality of dies in operative relation to the feed channel, a feed roll positioned for cont-act with the metal stock intermediate the die-rolls and the dies, and means operated by the reciprocatory movement of the said dies for intermittently imparting rotative movement to said feed roll. v

7. ln a fastener making machine, the combination of co-operating die-rolls, means for rotating the same, a feed channel Within Which the stock passes subsequently to the action of the die-rolls thereon, a reciprocating swaging die, a plurality of cutting dies, a feed roll positioned intermediate the dierolls and the swaging die, pawl and ratchet mechanism for imparting rotative movement intermittently to said feed roll, and means operated by the reciprocating movement of the dies for imparting movement to said pawl and ratchet mechanism.

ln testimony whereof I have signed my name hereto this 19th day of May, 1921.

Y VINCENT RAGONA. 

